Exercise mat



FIG. 1 is a top plan view of an exercise mat showing my new design.

FIG. 2 is a front elevational view thereof, the rear elevational view being a mirror image of the front elevational view and therefore not illustrated.

FIG. 3 is a right side elevational view thereof, the left side elevational view being a mirror image of the right side elevational view and therefore not illustrated; and,

FIG. 4 is a perspective view thereof showing the exercise mat partially rolled up.

The bottom of the exercise mat is flat and unornamented. 

The ornamental design for an exercise mat, as shown and described. 